Add stylelint 17 compatibility (#164)

* Initial plan

* Add stylelint 17 compatibility support

Co-authored-by: mfranzke <[email protected]>

* Update stylelint to v17 and remove redundant test script

Co-authored-by: mfranzke <[email protected]>

* Update stylelint-config-if-function to minor version

---------

Co-authored-by: copilot-swe-agent[bot] <[email protected]>
Co-authored-by: mfranzke <[email protected]>

Author: Copilot

.changeset/kind-coats-poke.md

@@ -0,0 +1,5 @@
+---
+"stylelint-config-if-function": minor
+---
+
+refactor: Add stylelint 17 compatibility

package.json

@@ -41,6 +41,7 @@
     "lint:stylelint": "stylelint test/fixtures/*.input.css --config .config/.stylelintrc.json",
     "lint:stylelint:14": "npx stylelint@14 test/fixtures/*.input.css --config .config/.stylelintrc.older.json",
     "lint:stylelint:15": "npx stylelint@15 test/fixtures/*.input.css --config .config/.stylelintrc.older.json",
+    "lint:stylelint:16": "npx stylelint@16 test/fixtures/*.input.css --config .config/.stylelintrc.json",
     "lint:xo": "xo",
     "prelint:packages": "pnpm run build",
     "prepare": "husky",
@@ -67,8 +68,8 @@
     "prettier-plugin-organize-imports": "4.3.0",
     "prettier-plugin-pkg": "0.21.2",
     "publint": "0.3.16",
-    "stylelint": "^16.26.1",
-    "stylelint-config-standard": "^39.0.1",
+    "stylelint": "^17.0.0",
+    "stylelint-config-standard": "^40.0.0",
     "vite": "7.2.6",
     "vitest": "4.0.16",
     "xo": "1.2.3"

packages/stylelint-config-if-function/package.json

@@ -34,7 +34,7 @@
     "prepublishOnly": "pnpm run build"
   },
   "peerDependencies": {
-    "stylelint": "^14.5.1 || ^15.0.0 || ^16.0.0"
+    "stylelint": "^14.5.1 || ^15.0.0 || ^16.0.0 || ^17.0.0"
   },
   "devDependencies": {
     "microbundle": "0.15.1"